Rotary brush



May 21, 1929. R. R. RADlNsE I 1,71%,137` f ROTARY BRUSH Filed April 27, 1928 INVENTOR. '71?. RM BY e a-'Q {.1.

' ATTORNEY.

Patented May 2l, 11929.y

UNITED STATES 1,714,131 PATENT OFFICE.

RUDOLPH R. RADINSE, or CLEVELAND, omo, ASSIGNoR To THE MANUFACTURERS BRUSH COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

Ro'rARY BRUSH.

Application led April 27, 192.8. ySerial No. 273,267.

This invention relates toY rotary brushes of the built up type, whereby brushes may be builtup to any desired width 1n one solid unit.

The object of the invention is to provide a convenient and inexpensive means for bu1l d` ing up a rotary brush to any desired axial length.` v e This Objectis affected by providing aseries of units or sections, each section consisting 0f a supporting plate and a ring around which the filling mate-rial is folded, the successive rings and filling material being clamped between plates, with the provision of intermediate guard plates if desired, and each supporting plate is provided with means whereby the adjacent plate and unit may bev clamped thereto, whereby successive Y may bey added to any desired extent to build up a brush of the requisite length. A cheap and easy means for locking the units together may consist of fingers projecting from one plate and adapted to be bent down over the ed e of the next plate.

n the accompanying drawings, Fig. 1 is a central section through a partly disassembled brush constructed according to `this invention; Fig. 2 is an end view with parts broken away to show the construction.

In constructing this brush the fibers or filling material 1 is inserted through an annular retaining ring 2 and the ends of said filling material 1 bent or folded around said ring so as to extend radially from said ring 2. The ring 2 with its quota of lling material 1 is then assembled with a supporting member 3 consisting of a circular sheet metal plate having a supporting hub 4 stamped therein of a size adapted tofirmly support said lling material. This plate has fingers 6 spaced around its outer edge. yA guard plate of thinner and consequently more compressible material is then applied to close up the unit or Section. Another supporting member 3 is next applied with the locking fingers 6 extending therefrom alternated with the locking-fingers 6 of the previous supporting member 3 which last mentioned locking fingers 6 are then bent down as shown at 6a, across or around the edge of the newly applied sup- Y porting member, while the same is under pressure, thus securely and keffectively locking those sections of. the brush together. Although the guard plate 5 might be omitted, its use provides protection against any of the bristles or other filling material being forced radially towardy the axis of the brush due tothe fact that the guard plate '5 is somewhat compressible as beforeexplained a tight bottomed groove or cell is formed for the brush section.

The adaptability of this construction for building up a multiple tsection self contained brush is now apparent inasmuch as the set of locking fingers 6 now upstanding provide means for attaching another section of filling n material and other members asl before and upon bending down the new set of lookin fingers the new section is locked to all the previous sectionsy and so on by repetition until the required axial length has been built up. The fingers extend across through the filling material so that creeping of the latter around the ring is prevented. For the last section a plain closing plate 7 is used instead of one` with fingers.

Each of the members extending to the center is provided with the size of hole 8 required for the shaft 9 upon which it is to be used. A keyway 10 can conveniently be incorporated into the punching.

Atrll one of the fingers is shown straightened out to the position as originally punched, before being bent to the upstanding position.

I claim:

1. In a rotary brush, the combination of a retaining ring, filling material extending through said ring and projecting radially outward therefrom, a supporting member at one side with an offset hub supporting said filling material, a guard plate at the otherV side 0f said filling material, and fingers on said supporting member adapted to be bent down over a similar supporting member of an adjacent brush unit, whereby means is provided for building up a multiple section brush ofany desired axial length.

2. In a rotary brush, the combination of annular retaining rings, filling material extending through said rings'and projecting radially outward therefrom, a series of supporting members alternating with said rings and between which said filling material is clamped, and means on each of said supporting members for securing said member to the nextl succeeding member.

3. A rotary brush built up of a plurality of sections, each section consisting of a supporting plate, a ring and filling material folded around said ring, the sections being consisting of a supporting plate offset centrally to forma hub, a ring, filling material folded around said ring, at one side of said plate, and a guard plate at the opposite side of said ring and filling material, .each supporting plate having a plurality of spaced fingers at its outer edge bent across outside of the ring and guard plate of its section and around the ,outer edge of the supporting plate of the next section.

In testimony whereof, Ido affix my--signature.

RUDOLPH R. RADINSE. 

